Germany's Chancellor Angela Merkel, center, speaks to China's President Xi Jinping, left, and Russia's President Vladimir Putin, second right, during a family photo session in front of Osaka Castle at the G-20 summit, Friday, June 28, 2019, in Osaka, Japan. (Tomohiro Ohsumi/Pool Photo via AP)

BERLIN (AP) — German Chancellor Angela Merkel says she understands reporters' questions surrounding her health after two incidents this month in which she was seen shaking at public events, but insisted: "I'm fine."

Merkel said Saturday at the end of the Group of 20 summit in Japan that included a long-distance flight and grueling negotiations with other world leaders that "I'm convinced, just as this reaction occurred it will go away again."

The 64-year-old appeared unsteady and was seen shaking at a ceremony in Berlin on Thursday. Last week, Merkel's whole body shook as she stood outside in hot weather alongside Ukraine's president. Merkel said afterward that she was fine after drinking three glasses of water, which she "apparently needed."

Chancellor Angela Merkel (CDU) takes part in the presentation of the appointment and dismissal certificate as Federal Minister of Justice to Katarina Barley (SPD) and the new Federal Minister of Justice Christine Lambrecht (SPD) by Federal President Frank-Walter Steinmeier in Bellevue Castle in Berlin, Germany, Thursday, June 27, 2019. (Kay Nietfeld/dpa via AP)
Chancellor Angela Merkel (CDU) takes part in the presentation of the appointment and dismissal certificate as Federal Minister of Justice to Katarina Barley (SPD) and the new Federal Minister of Justice Christine Lambrecht (SPD) by Federal President Frank-Walter Steinmeier in Bellevue Castle in Berlin, Germany, Thursday, June 27, 2019. (Kay Nietfeld/dpa via AP)
German Chancellor Angela Merkel, left, looks at her watch as Russian President Vladimir Putin visits her for the talks during a meeting on the sidelines of the G-20 summit in Osaka, western Japan, Saturday, June 29, 2019. (AP Photo/Alexander Zemlianichenko, Pool)
From left, Italian Prime Minister Giuseppe Conte, British Prime Minister Theresa May, Dutch Prime Minister Mark Rutte, French President Emmanuel Macron, Spanish Prime Minister Pedro Sanchez, German Chancellor Angela Merkel, European Council President Donald Tusk, and Brazil President Jair Bolsonaro prepare to attend a press conference at the venue of the G-20 summit in Osaka, western Japan Saturday, June 29, 2019. (AP Photo/Eugene Hoshiko)